scholarly journals Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus

Ecosphere ◽  
2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Haoran Tang ◽  
Jiangshan Bai ◽  
Fangyuan Chen ◽  
Ying Liu ◽  
Yanjing Lou
Keyword(s):  
Tuber Sprouting

Control of potato tuber sprouting

2001 ◽  
Vol 6 (8) ◽  
pp. 333-335 ◽  
Author(s):  
Uwe Sonnewald
Keyword(s):  
Potato Tuber ◽  
Tuber Sprouting

Diurnally Alternating Temperatures Stimulate Sprouting of Purple Nutsedge (Cyperus rotundus) Tubers

Weed Science ◽  
1996 ◽  
Vol 44 (1) ◽  
pp. 122-125 ◽  
Author(s):  
Joel E. Miles ◽  
Roy K. Nishimoto ◽  
Osamu Kawabata
Keyword(s):  
High Temperature ◽  
Cyperus Rotundus ◽  
Maximum Temperature ◽  
Temperature Cycle ◽  
Purple Nutsedge ◽  
Tuber Temperature ◽  
Tuber Sprouting ◽  
Alternating Temperature ◽  
Increasing Temperature ◽  
Temperature Responses

Experiments were conducted to determine the response of purple nutsedge tuber sprouting to diurnally alternating temperature. These experiments compared the response to alternating and constant temperatures and determined the effect of the amplitude of alternation and time of exposure to the maximum temperature. Tuber sprouting was more rapid and complete with alternating temperatures than with constant temperatures. Increasing temperature fluctuation from 0 to 6 C for 12 h daily linearly increased total tuber sprouting. As little as 30 min exposure to high temperature per day provided nearly the same level of sprouting as a 12 h alternating temperature cycle. This phenomenon should be considered when conducting studies to describe tuber temperature responses or when predicting tuber sprouting and emergence.

Activity of Acetanilide Herbicides on Yellow Nutsedge (Cyperus esculentus)

Weed Science ◽  
1985 ◽  
Vol 33 (5) ◽  
pp. 721-723 ◽  
Author(s):  
A. J. Cornelius ◽  
W. F. Meggitt ◽  
Donald Penner
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Ethyl Ester ◽  
Isopropyl Ester ◽  
Cyperus Esculentus ◽  
Yellow Nutsedge ◽  
Soil Zone ◽  
Significant Difference ◽  
Tuber Sprouting ◽  
Petri Dishes

The acetanilide herbicides alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide], metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide], the ethyl ester of diethatyl [N-(chloroacetyl)-N-(2,6-diethylphenyl)glycine], or H-26910, the isopropyl ester ofN-(chloroacetyl)-N-(2-methyl-6-ethylphenyl)glycine, failed to inhibit yellow nutsedge (Cyperus esculentusL. ♯ CYPES) tuber sprouting in petri dishes. At 3.5 and 0.35 μM, all herbicides inhibited growth of newly emerging shoots. There was no significant difference in activity among alachlor, metolachlor, diethatyl ethyl, and R-26910 on yellow nutsedge sprouts grown in petri dishes. In soil, metolachlor and alachlor were equally effective for yellow nutsedge control. Both were more effective than H-26910 at high levels of soil organic matter. Diethatyl ethyl was least effective at all levels of soil organic matter. For all herbicides evaluated, activity decreased with increased levels of organic matter in the soil. For acetanilide herbicides to be effective on yellow nutsedge, they needed to be in the soil zone, above or at the level of the tuber.

Volatile monoterpenes inhibit potato tuber sprouting

1991 ◽  
Vol 68 (12) ◽  
pp. 821-831 ◽  
Author(s):  
Steven F. Vaughn ◽  
Gayland F. Spencer
Keyword(s):  
Potato Tuber ◽  
Tuber Sprouting

scholarly journals Herbicidal Potential of Dryland Plants on Growth and Tuber Sproutingin Purple Nutsedge (Cyperus rotundus)

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
J. IQBAL ◽  
S.T. ZAHRA ◽  
M. AHMAD ◽  
A.N. SHAH ◽  
W. HASSAN
Keyword(s):  
Plant Species ◽  
Significant Interaction ◽  
Cyperus Rotundus ◽  
Calotropis Procera ◽  
Complete Suppression ◽  
Purple Nutsedge ◽  
Rhazya Stricta ◽  
Root And Shoot Length ◽  
Tuber Sprouting ◽  
Test Plants

ABSTRACT: In the current study the herbicidal potential of different dryland plant species to suppress tuber sprouting and growth in the purple nutsedge (Cyperus rotundus) was investigated. The plant species evaluated were Fagonia indica, Aerva javanica, Calotropis procera, Rhazya stricta and Withania coagulans. In a greenhouse experiment, 5 sprouted and 5 non-sprouted tubers of nutsedge were planted in pots containing 250g field-collected soil. Pots were irrigated regularly with aqueous extracts of test plants at five concentrations (0, 25, 50, 75 and 100%; original extract was concentrated 20 times and was considered as 100% concentrated and further concentrations were made accordingly). Extracts of all test plants significantly inhibited nutsedge tuber sprouting and growth. A significant interaction was observed between sprouting index (SI) and final sprouting percentage. While a non-significant interaction was observed between the timing of sprouting initiation and mean sprouting time (MST). Maximum reductions in SI and final sprouting percentage were recorded with Rhazya stricta extracts. Extracts of Rhazya stricta showed maximum suppressive potential of nutsedge density, root and shoot length, root and shoot fresh and dry weight. Overall, the least effective suppression of purple nutsedge was observed for extracts of Fagonia indica. Calotropis procera extracts resulted in the lowest reductions in nutsedge root length of all test plants but all test plants showed similar effects on timing of sprouting initiation and mean sprouting time. The 100% and 75% concentrations provided complete suppression of nutsedge. For all test plants, the 25% extract concentration was least effective and in some cases results were similar to the water-only control treatment. Our findings suggest that several dryland plant species with strong allelochemical properties have the potential to substantially reduce the deleterious impacts of purple nutsedge in dryland cropping systems and warrant further study.

Influence of exogenous gibberellin inhibitors on tuber sprouting in yam

2003 ◽  
Vol 43 (3) ◽  
pp. 147-151 ◽  
Author(s):  
H Shiwachi ◽  
T Ayankanmi ◽  
R Asiedu ◽  
M Onjo
Keyword(s):  
Exogenous Gibberellin ◽  
Tuber Sprouting

scholarly journals Shoot Generation and Callus Induction of Dioscorea hispida Dennst by Different Plant Growth Hormones and Basal Media

2020 ◽  
Vol 11 (2) ◽  
pp. 30-38
Author(s):  
Nor Hasima Mahmod ◽  
Zakiah Mustapha ◽  
Ahmad Hilman Ariffin Husni ◽  
Nurul Anisah Ishak ◽  
Hafsah Jaafar
Keyword(s):  
Callus Culture ◽  
Basal Medium ◽  
Dichlorophenoxyacetic Acid ◽  
Naphthaleneacetic Acid ◽  
Plant Growth Hormones ◽  
Efficient Type ◽  
Medicinal Properties ◽  
Tuber Sprouting ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Stem Segments

Dioscorea hispida Dennst produces tuber which possess valuable medicinal properties but unsustainable harvesting has led to its reduction. The plant propagates slowly because of its low tuber sprouting rate. In average, Dioscorea hispida Dennst tubers took approximately 60 d to break dormancy and sprout. Hence, callus culture is proposed as a possible efficient type of culture for manipulation of this species.  In the present study, calli were induced from stem segments to evaluate callus culture potential of Dioscorea hispida Dennst. Results indicate that the combination of 1 mgL-1 naphthaleneacetic acid (NAA), 1 mgL-1 6- benzylaminopurine (BAP) and 0.5 mgL-1 2,4-dichlorophenoxyacetic acid (2, 4-D) in Gamborg (B5) medium improved callus multiplication and differentiation in the stem culture as opposed to those in Murashige and Skoog (MS) medium. The findings from the present study provide the basis of callus culture protocol for stem explant of Dioscorea hispida Dennst with B5 being the more effective basal medium.

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